Candidates can utilize various resources to stay updated on UPSC exam notifications, including the official UPSC website, which regularly posts important announcements and exam schedules. Subscribing to educational platforms, coaching institute newsletters, and government job portals can provide timely updates as well. Engaging with social media groups and discussion forums focused on UPSC preparation allows candidates to exchange information and stay informed. Following reputed educational YouTube channels and joining online communities can also aid in receiving the latest updates and resources efficiently.